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SubTypes of NHDFlowline<\/SPAN><\/P>

SubType Description Definition<\/SPAN><\/P>

334 Connector Known, but unspecific, connection between two nonadjacent network segments.<\/SPAN><\/P>

336 CanalDitch Artificial open waterway constructed to transport water, to irrigate or drain land, to connect two or more bodies of water, or to serve as a waterway for watercraft.<\/SPAN><\/P>

420 Underground Conduit Underground passage of surface water.<\/SPAN><\/P>

428 Pipeline Closed conduit with pumps, valves, and control devices, for conveying fluids, gases, or finely divided solids.<\/SPAN><\/P>

460 StreamRiver Body of flowing water.<\/SPAN><\/P>

468 Drainageway A drainageway is a watercourse that conveys, or is likely to convey water but lacks a clearly defined channel or banks differentiating it from an ephemeral stream/river. Drainageways typically convey water for limited periods of time and do not carry perennial flow. Drainageways may follow natural topographic flow paths or constructed or human-made flow paths.<\/SPAN><\/P>

558 ArtificialPath Abstraction to facilitate hydrologic modeling through open water bodies and along coastal and Great Lakes shorelines and to act as a surrogate for lakes and other water bodies.<\/SPAN><\/P>

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